To ostracize.
To vote against, especially in an exclusive organization.
A black ball used to indicate such a negative vote.
A rejection; a vote against admitting someone.
A kind of large black sweet; a niggerball.
A game, a standardized version of the English version of eight-ball.
A substance for blacking shoes, boots, etc. or for taking impressions of engraved work.
To bring (something) into practice.
To cause (someone) to be acquainted (with someone else).
To add (something) to a system, a mixture, or a container.
To make (something or someone) known by formal announcement or recommendation.